CN113715253B - Intelligent plastic mould based on sensor - Google Patents
Intelligent plastic mould based on sensor Download PDFInfo
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- CN113715253B CN113715253B CN202111027139.1A CN202111027139A CN113715253B CN 113715253 B CN113715253 B CN 113715253B CN 202111027139 A CN202111027139 A CN 202111027139A CN 113715253 B CN113715253 B CN 113715253B
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- male die
- pull device
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- sensor
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- 239000004033 plastic Substances 0.000 title claims abstract description 53
- 229920003023 plastic Polymers 0.000 title claims abstract description 53
- 238000001746 injection moulding Methods 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 238000000465 moulding Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 30
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 58
- 238000007493 shaping process Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an intelligent plastic mold based on a sensor, which comprises a support, a male mold mounting seat, a female mold, a push-pull device, a liftable base, a transmission assembly, an air pressure sensor, a transmission chain, a push rod and a first reset spring, wherein the movable end of the push-pull device is respectively connected with the male mold mounting seat and the transmission chain; one end of the push rod is arranged in the gas collecting cavity and is tightly attached to the inner side wall of the gas collecting cavity, the end face of the push rod is provided with a gas pressure sensor, the other end of the push rod is fixedly connected with one end of the first reset spring and one end of the transmission chain, and the other end of the transmission chain is connected with the movable end of the push-pull device through the transmission assembly. The invention is more intelligent and can improve the yield of injection molding finished products.
Description
Technical Field
The invention relates to the technical field of plastic injection molding, in particular to an intelligent plastic mold based on a sensor.
Background
Injection molding of plastic products is a processing method used in mass production of parts with complex shapes, and specifically refers to injection of a heated and melted material into a mold cavity under high pressure, and cooling and solidification are carried out to obtain a molded product.
However, in some existing products, during injection molding, due to the presence of gas between the molding cavities formed by the male mold and the female mold, it is difficult for the injection molding material to rapidly fill the entire molding cavity. And the oxygen in the molding cavity can react with the high-temperature plastic material, thereby influencing the quality of the injection molding finished product. In addition, during demolding, the molded injection molding finished product is easy to adhere to the male die, and the injection molding finished product can be ejected out by using an auxiliary tool similar to a thimble. However, for the just-formed product, the ejector pins tend to deform the surface of the product, thereby affecting the quality of injection molding. Therefore, the quality of the injection molding finished product is easily affected in some existing plastic molds, and the yield of the product is reduced.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: intelligent plastic mould based on sensor uses more intelligent, promotes the product yield of moulding plastics finished product.
In order to solve the problems, the invention adopts the following scheme:
the intelligent plastic mold based on the sensor comprises a bracket, a male die mounting seat, a female die, a push-pull device, a liftable base, a transmission assembly, an air pressure sensor, a transmission chain, a push rod and a first reset spring;
the push-pull device and the transmission assembly are both arranged on the bracket, the movable end of the push-pull device is fixedly connected with the male die mounting seat and the transmission chain respectively, the male die is arranged on one surface of the male die mounting seat far away from the push-pull device, the liftable base is arranged below the male die, the female die is arranged on the liftable base, and the male die is combined with the female die to form a molding die cavity;
a gas collecting cavity is arranged on one surface of the male die mounting seat, which is close to the push-pull device, a through hole for communicating the gas collecting cavity with the male die is arranged on the male die mounting seat, and a plurality of air holes for communicating the molding die cavity are arranged on the male die at the positions corresponding to the through holes;
one end of the push rod is tightly attached to the inner side wall of the gas collection cavity, the other end of the push rod penetrates out of the gas collection cavity and is fixedly connected with one end of the first reset spring and one end of the transmission chain, the air pressure sensor is arranged on the end face of the push rod, which is positioned in the gas collection cavity, the other end of the first reset spring is arranged on the support, the other end of the transmission chain is fixedly connected with the movable end of the push-pull device through the transmission assembly, and the moving direction of the push rod and the moving end of the push-pull device is opposite.
In summary, the beneficial effects of the invention are as follows: the utility model provides an intelligent plastic mould based on sensor, utilize push-pull device and liftable base to cooperate, make terrace die and die combination form the shaping die cavity, adjust the position of shaping die cavity through push-pull device, simultaneously with the help of drive assembly and drive chain drive push rod remove, take out the gas in the shaping die cavity to gas collection chamber through gas pocket and through-hole, and make first reset spring compressed, and rise push-pull device after accomplishing injection molding work, make terrace die and die separate, first reset spring resets and drives the push rod and blow out gas by the gas pocket again, be in the negative pressure state that is close no gas in the shaping die cavity before moulding plastics, the problem such as gas and molten plastics production reaction has been avoided, still with the help of the completion condition of air pressure sensor real-time supervision pumping work, prevent to the efficiency of the injection molding technology from causing unnecessary influence, after moulding plastics again can be with the help of gas blowing the fashioned product, avoid the finished product of moulding plastics to glue on the terrace die, and then guaranteed product quality, use is more intelligent, and the product yield of finished product of moulding plastics can be promoted.
Drawings
FIG. 1 is a front view of a sensor-based smart plastic mold according to an embodiment of the present invention;
FIG. 2 is a front view (partially in section) of a sensor-based smart plastic mold in accordance with an embodiment of the present invention;
fig. 3 is an enlarged schematic view of fig. 2 a according to an embodiment of the present invention.
Description of the reference numerals:
1. a bracket; 2. a male die; 3. a male die mounting seat; 4. a female die; 5. a push-pull device; 6. a liftable base; 7. a transmission assembly; 8. an air pressure sensor; 9. a drive chain; 10. a push rod; 11. a first return spring; 12. a molding cavity; 13. a through hole; 14. air holes; 15. an injection molding machine; 16. a second return spring; 17. briquetting; 18. a material placing chamber; 19. a feed channel; 20. a discharge channel; 21. an electric valve; 22. a temperature sensor; 23. a heating device; 24. a photoelectric sensor; 25. a conveyor belt; 26. a slide rail; 27. a driving motor; 28. a first displacement sensor; 29. a second displacement sensor; 30. compressing the air bag; 31. an electromagnetic valve; 32. a ventilation duct; 33. a gas collection chamber;
51. a lifting device; 52. a push rod motor;
71. a support shaft; 72. a driving wheel;
131. a common channel; 132. a branch channel;
151. a charging barrel; 152. and (3) an injection molding cavity.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, a sensor-based intelligent plastic mold comprises a bracket 1, a male mold 2, a male mold mounting seat 3, a female mold 4, a push-pull device 5, a liftable base 6, a transmission assembly 7, an air pressure sensor 8, a transmission chain 9, a push rod 10 and a first reset spring 11;
the push-pull device 5 and the transmission assembly 7 are both arranged on the bracket 1, the movable end of the push-pull device 5 is fixedly connected with the male die mounting seat 3 and the transmission chain 9 respectively, the male die 2 is arranged on one surface of the male die mounting seat 3 away from the push-pull device 5, the liftable base 6 is arranged below the male die 2, the female die 4 is arranged on the liftable base 6, and the male die 2 is connected with the female die 4 to form a molding die cavity 12;
a gas collecting cavity 33 is arranged on one surface of the male die mounting seat 3, which is close to the push-pull device 5, a through hole 13 for communicating the gas collecting cavity 33 with the male die 2 is arranged on the male die mounting seat 3, and a plurality of air holes 14 for communicating the molding die cavity 12 are arranged on the male die 2 at positions corresponding to the through hole 13;
one end of the push rod 10 is tightly attached to the inner side wall of the gas collection cavity 33, the other end of the push rod 10 penetrates out of the gas collection cavity 33 and is fixedly connected with one end of the first reset spring 11 and one end of the transmission chain 9, the push rod 10 is located on the end face in the gas collection cavity 33 and is provided with the air pressure sensor 8, the other end of the first reset spring 11 is arranged on the support 1, the other end of the transmission chain 9 is fixedly connected with the movable end of the push-pull device 5 through the transmission assembly 7, and the moving direction of the push rod 10 and the moving end of the push-pull device 5 is opposite.
From the above description, the beneficial effects of the invention are as follows: the utility model provides an intelligent plastic mould based on sensor, utilize push-pull device 5 and liftable base 6 to cooperate, make terrace die 2 and die 4 combination form shaping die cavity 12, adjust shaping die cavity 12's position through push-pull device 5, simultaneously drive push rod 10 with the help of drive assembly 7 and drive chain 9 and remove, take out the gas in the shaping die cavity 12 to gas collection chamber 33 through gas pocket 14 and through-hole 13, and make first reset spring 11 compressed, and rise push-pull device 5 after accomplishing injection moulding work, make terrace die 2 and die 4 separate, simultaneously first reset spring 11 resets and drive push rod 10 and blow out gas by gas pocket 14 again, be in near the negative pressure state of no gas in the shaping die cavity 12 before moulding plastics, avoid the gas to react with molten plastics scheduling problem, still monitor the completion condition of pumping work in real time with the help of air pressure sensor 8, prevent to the efficiency of the injection moulding technology from causing unnecessary influence by the pumping process, can blow the product of shaping again with the help of gas after moulding plastics, avoid the finished product to glue on terrace die 2, and then guaranteed product quality, use more intelligent, the finished product of moulding plastics is promoted.
Further, the injection molding machine 15, a second reset spring 16, a pressing block 17 and a material placing cavity 18 are also included;
the pressing block 17 is arranged in the material placing cavity 18, one end of the pressing block 17, which is far away from the inner bottom surface of the material placing cavity 18, penetrates out of the material placing cavity 18 and is fixedly connected with one end of the second reset spring 16, and the other end of the second reset spring 16 is fixedly connected with the movable end of the push-pull device 5;
the upper position of the inner side wall of the material placing cavity 18 is provided with a feeding channel 19, the feeding channel 19 is communicated with a discharge hole of a charging barrel 151 of the injection molding machine 15, the inner bottom surface of the material placing cavity 18 is provided with a discharge channel 20, the discharge channel 20 is communicated with an injection molding cavity 152 of the injection molding machine 15, and the discharge channel 20 is provided with an electric valve 21.
As can be seen from the above description, the injection molding machine 15 is additionally provided with a device comprising a second reset spring 16, a pressing block 17 and a material placing chamber 18, molten plastic from a charging barrel 151 of the injection molding machine 15 is temporarily stored in the material placing chamber 18, and the movable end of the push-pull device 5 is matched with the second reset spring 16 to drive the pressing block 17 to press down, so that the molten plastic is compacted; after the movable end of the push-pull device 5 is lifted, the electric valve 21 is opened, under the reset action of the second reset spring 16, the pressing block 17 pushes molten plastic to enter the injection cavity 152 of the injection molding machine 15 from the discharge channel 20, and the injection molding machine 15 waits for injection with the electric valve, so that the density of the molten plastic is effectively increased, and the quality of the final injection molding finished product is better.
Further, a temperature sensor 22 and a heating device 23 are also included;
the outer side wall of the material placing chamber 18 is provided with a heating device 23 and a temperature sensor 22.
As is apparent from the above description, the heating device 23 can heat the temperature of the material placing chamber 18 to avoid the phenomenon that the high-temperature molten plastic is condensed to affect the quality of the raw material. The temperature sensor 22 can be matched with the heating device 23 to realize intelligent heating control, so that the use is more convenient.
Further, a photoelectric sensor 24 and a conveyor belt 25 are also included;
the photoelectric sensor 24 is arranged below the male die mounting seat 3, the conveyor belt 25 is arranged between the emitter and the receiver of the photoelectric sensor 24, the number of the liftable bases 6 is multiple and the liftable bases are distributed on the conveyor belt 25, the male die 2 and the female die 4 which can form the molding die cavity 12 with different shapes are respectively arranged on each liftable base 6, and one surface, away from the push-pull device 5, of the male die mounting seat 3 is detachably connected with the male die 2.
From the above description, the multiple sets of liftable bases 6, the male dies 2 and the female dies 4 are distributed and arranged on the conveying belt 25, so that the push-pull device 5 can be matched with the conveying belt 25, and the male dies 2 and the female dies 4 which are in different butt joint are combined, so that injection molding of multiple dies is realized, accurate positioning is realized through the photoelectric sensor 24, intelligent precise control is realized, and the production efficiency of injection molding finished products is improved.
Further, an electromagnet is arranged on one surface of the male die mounting seat 3 away from the push-pull device 5, and a magnetic substance is arranged on one surface of the male die 2 away from the female die 4;
the male die mounting seat 3 is fixed with the male die 2 through magnetic attraction of the electromagnet.
From the above description, the male die mounting seat 3 and the male die 2 are magnetically attracted and fixed by the controllable electromagnet, so that the male die mounting seat and the male die can be matched with the conveyor belt 25, automatic die replacement is realized, and manpower resources and time resources are saved.
Further, the transmission assembly 7 comprises a support shaft 71 and a transmission wheel 72;
the end of the transmission chain 9 far away from the push-pull device 5 bypasses the transmission wheel 72 and is fixedly connected with the push rod 10, the transmission wheel 72 is arranged on the support shaft 71, and the support shaft 71 is arranged on the support 1.
As can be seen from the above description, the transmission chain 9 realizes tension transmission by means of the transmission wheel 72, and changes the tension direction, so that the movable end of the push-pull device 5 drives the push rod 10 to rise when being pressed down, thereby realizing gas extraction.
Further, a slide rail 26, a driving motor 27 and a first displacement sensor 28 are also included;
the two ends of the support 1 corresponding to the support shaft 71 are respectively provided with a slide rail 26, the two ends of the support shaft 71 are respectively and correspondingly connected with the slide rails 26 in a sliding manner, and the slide rails 26 are parallel to the movable end of the push-pull device 5;
the driving motor 27 is disposed on the bracket 1, a movable end of the driving motor 27 is fixedly connected with the supporting shaft 71, and the first displacement sensor 28 is disposed on the supporting shaft 71.
As can be seen from the above description, the supporting shaft 71 is mounted on the sliding rail 26 and can slide on the sliding rail, and the driving motor 27 is used for performing movement control to appropriately change the tightness degree of the transmission chain 9, and the supporting shaft 71 assists the movable end of the push-pull device 5 to pull the push rod 10 together, so as to compensate the error of the displacement of the push rod 10 caused by different volumes of gas required to be extracted by different molds, thereby achieving more stable and more accurate control, improving the flexibility of the use of the equipment, and making the equipment more intelligent.
Further, the through hole 13 includes a common passage 131 and a plurality of branch passages 132;
one end of the common channel 131 is communicated with the gas collecting cavity 33, the other end of the common channel 131 is simultaneously communicated with one ends of a plurality of branch channels 132, and the other ends of the plurality of branch channels 132 are arranged on one surface of the male die mounting seat 3 facing the male die 2 in a dispersing manner.
From the above description, the through hole 13 adopts a one-to-many communication mode, so that the air at different positions in the molding cavity 12 can be sucked at the same time or blown at different positions in the molding cavity 12 at the same time, the flow rate of the air is increased, the air suction efficiency is accelerated, the air blowing effect is enhanced, the injection molding efficiency is further improved, and the product yield of injection molding finished products is improved.
Further, a second displacement sensor 29 is included;
the second displacement sensor 29 is arranged on the movable end of the push-pull device 5.
From the above description, the second displacement sensor 29 is installed on the movable end of the push-pull device 5, so as to realize intelligent automatic control of the push-pull distance of the push-pull device 5, thereby accurately controlling the operation of the whole injection molding process and improving the injection molding efficiency.
Further, the push-pull device 5 comprises a lifting device 51 and a push rod motor 52;
the lifting device 51 is arranged on the bracket 1, and the push rod motor 52 is arranged on the lifting device 51.
As can be seen from the above description, the lifting device 51 can control the position of the push rod motor 52 to match the injection molding requirements under different conditions, so that the device is more intelligent and more convenient.
Referring to fig. 1 to 3, a first embodiment of the present invention is as follows:
the intelligent plastic mold based on the sensor comprises a bracket 1, a male mold 2, a male mold mounting seat 3, a female mold 4, a push-pull device 5, a liftable base 6, a transmission assembly 7, a pneumatic sensor 8, a transmission chain 9, a push rod 10 and a first reset spring 11 as shown in fig. 1 to 3. Wherein, push-pull device 5 and drive assembly 7 all set up on support 1, push-pull device 5's active end respectively with terrace die mount pad 3 and drive chain 9 fixed connection, be provided with terrace die 2 on the one side that terrace die mount pad 3 kept away from push-pull device 5, liftable base 6 sets up in terrace die 2 below, die 4 sets up on liftable base 6, terrace die 2 and die 4 join, form shaping die cavity 12. The male die mounting seat 3 is provided with a gas collecting cavity 33 on one surface close to the push-pull device 5, the male die mounting seat 3 is provided with a through hole 13 for communicating the gas collecting cavity 33 with the male die 2, and a plurality of air holes 14 for communicating the molding die cavity 12 are arranged on the male die 2 corresponding to the through hole 13. One end of the push rod 10 is tightly attached to the inner side wall of the gas collection cavity 33, the other end of the push rod 10 penetrates through the gas collection cavity 33 and is fixedly connected with one end of the first reset spring 11 and one end of the transmission chain 9, the air pressure sensor 8 is arranged on the end face, located in the gas collection cavity 33, of the push rod 10, the other end of the first reset spring 11 is arranged on the support 1, the other end of the transmission chain 9 is fixedly connected with the movable end of the push-pull device 5 through the transmission assembly 7, and the moving directions of the push rod 10 and the movable end of the push-pull device 5 are opposite.
In the present embodiment, the push rod 10 is divided into an upper end and a lower end. The upper end and the lower end are fixedly connected by means of a compression air bag 30, and an air duct 32 is arranged on the end face of the push rod 10 close to the lower end of the male die mounting seat 3. One end of the ventilation pipeline 32 is communicated with a space surrounded by the gas collection cavity 33 and the end face of the push rod 10, which is close to one end of the male die mounting seat 3, the other end of the ventilation pipeline 32 is communicated with the gas outlet of the compression airbag 30, and the gas outlet of the compression airbag 30 is provided with an electromagnetic valve 31.
In this embodiment, the injection molding process of the plastic mold is:
firstly, controlling the liftable base 6 to enable the male die 2 and the female die 4 on the male die mounting seat 3 to be matched to form a molding die cavity 12;
then, the push-pull device 5 is controlled to be pressed downwards and matched with the liftable base 6, so that the molding die cavity 12 moves downwards; simultaneously, the downward force of the push-pull device 5 is changed into the upward pulling force of the push rod 10 through the transmission chain 9, so that the gas in the molding die cavity 12 is pumped out into the gas collecting cavity 33 through the air hole 14 and the through hole 13, and the first reset spring 11 and the compression air bag 30 are compressed;
then, by means of the data collected by the air pressure sensor 8, the volume of the air in the air collecting cavity 33 can be obtained for judging whether the air extraction process is completed or not; starting an injection molding process immediately after completion;
finally, after injection molding is completed and the molten plastic is solidified into a plastic product, the push-pull device 5 is controlled to rise; accordingly, the push rod 10 loses the rising pulling force and pushes down under the elastic force of the first return spring 11, so that the gas in the gas collection cavity 33 is discharged through the through hole 13; the blown gas blows on the surface of the injection molding product, so that the injection molding product is not easy to adhere to the surface of the male die 2, and the injection molding product is conveniently taken out by an ejection device and the like, thereby ensuring that the injection molding product has good quality. In addition, in order to avoid the condition that the gas in the gas collecting cavity 33 is not used enough in the blowing process, the electromagnetic valve 31 on the compression air bag 30 can be selectively opened, so that the gas in the compression air bag 30 flows to the gas collecting cavity 33 through the ventilation pipeline 32, more gas in the gas collecting cavity 33 can be blown out, and the stripping effect on the injection molding finished product is enhanced.
In the present embodiment, as shown in fig. 3, the through hole 13 includes a common passage 131 and a plurality of branch passages 132. Wherein, one end of the common channel 131 is communicated with the gas collecting cavity 33, the other end of the common channel 131 is simultaneously communicated with one ends of a plurality of branch channels 132, and the other ends of the plurality of branch channels 132 are arranged on one surface of the male die mounting seat 3 facing the male die 2 in a dispersing way. And, correspondingly, the air holes 14 on the male die 2 are also distributed and arranged corresponding to the branch passages 132 so as to enhance the flow effect of the air.
In this embodiment, as shown in fig. 1, a second displacement sensor 29 is provided on the movable end of the push-pull device 5. The push-pull device 5 comprises a lifting device 51 and a push rod motor 52; the lifting device 51 is provided on the bracket 1, and the push rod motor 52 is provided on the lifting device 51. In this embodiment, the function of the sensor is fully utilized, so that the control of the device is more intelligent.
Referring to fig. 1 to 3, a second embodiment of the present invention is as follows:
on the basis of the first embodiment, as shown in fig. 1 to 3, the intelligent plastic mold based on the sensor further comprises an injection molding machine 15, a second reset spring 16, a temperature sensor 22, a heating device 23, a pressing block 17 and a material placing cavity 18. Wherein, briquetting 17 sets up in putting material cavity 18, and the one end that briquetting 17 kept away from the inside bottom surface of putting material cavity 18 wears out to put material cavity 18 and with the one end fixed connection of second reset spring 16, the other end of second reset spring 16 and push-and-pull device 5's active end fixed connection. The upper position of the inside wall of the material placing cavity 18 is provided with a feeding channel 19, the feeding channel 19 is communicated with a discharge hole of a charging barrel 151 of the injection molding machine 15, the inner bottom surface of the material placing cavity 18 is provided with a discharge channel 20, the discharge channel 20 is communicated with an injection molding cavity 152 of the injection molding machine 15, and the discharge channel 20 is provided with an electric valve 21. The outer side wall of the material placing chamber 18 is provided with a heating device 23 and a temperature sensor 22.
In this embodiment, as shown in fig. 3, molten plastic flows out of a barrel 151 of the injection molding machine 15 to the inside of the placement chamber 18 via a feed channel 19. The electrically operated valve 21 remains closed. In the process of pushing down the push-pull device 5, the second reset spring 16 drives the pressing block 17 to push down, so as to compress the molten plastic. After the gas in the forming die is pumped away, the pressing block 17 is continuously pressed down under the action of the second return spring 16; at the same time, the electrically operated valve 21 is opened and molten plastic is pushed into the injection chamber 152 of the injection molding machine 15. In order to prevent the molten plastic from being cooled and solidified, a heating device 23 and a temperature sensor 22 are provided in the material placement chamber 18, and the temperature of the material placement chamber 18 is adjusted and controlled in real time.
Referring to fig. 2 and 3, a third embodiment of the present invention is as follows:
on the basis of the first or second embodiment, as shown in fig. 2 and 3, the intelligent plastic mold based on the sensor further comprises a photoelectric sensor 24 and a conveyor belt 25. The photoelectric sensor 24 is disposed below the punch mounting seat 3, the conveyor belt 25 is disposed between the emitter and the receiver of the photoelectric sensor 24, the number of liftable bases 6 is plural and distributed on the conveyor belt 25, and each liftable base 6 is respectively provided with a punch 2 and a die 4 capable of forming molding cavities 12 with different shapes. In this embodiment, in order to enable injection molding of different plastic molds by the same injection molding apparatus, a plurality of sets of apparatuses consisting of a male mold 2, a female mold 4 and a liftable device 51 are provided on the conveyor belt 25. In order to facilitate replacement of the male die 2, the side of the male die mounting seat 3 away from the push-pull device 5 is detachably connected with the male die 2.
Preferably, in this embodiment, the side of the punch holder 3 facing away from the push-pull device 5 is provided with an electromagnet, and the side of the punch 2 facing away from the die 4 is provided with a magnetic substance. The male die mounting seat 3 is fixed with the male die 2 through magnetic attraction of an electromagnet. In other equivalent embodiments, the male die mounting seat 3 and the male die 2 can be fixed by other detachable connection modes.
Referring to fig. 1, a fourth embodiment of the present invention is as follows:
based on the first, second or third embodiment, as shown in fig. 1, the intelligent plastic mold based on the sensor further comprises a slide rail 26, a driving motor 27 and a first displacement sensor 28. Wherein the transmission assembly 7 comprises a support shaft 71 and a transmission wheel 72. The end of the transmission chain 9 far away from the push-pull device 5 bypasses the transmission wheel 72 and is fixedly connected with the push rod 10, the transmission wheel 72 is sleeved on the support shaft 71, and the support shaft 71 is arranged on the support 1. Two ends of the support 1 corresponding to the support shaft 71 are respectively provided with a slide rail 26, two ends of the support shaft 71 are respectively and correspondingly connected with the slide rails 26 in a sliding manner, and the slide rails 26 are parallel to the movable ends of the push-pull device 5. The driving motor 27 is arranged on the bracket 1, the movable end of the driving motor 27 is fixedly connected with the supporting shaft 71, and the first displacement sensor 28 is arranged on the supporting shaft 71.
In this embodiment, the relative position of the support shaft 71 on the bracket 1 can be adjusted and controlled by the structure composed of the slide rail 26, the driving motor 27 and the fixing base, so that the whole transmission assembly 7 is more flexible, and the push rod 10 is controlled by matching with the push-pull device 5. In addition, in order to prevent the driving chain 9 from sliding left and right on the driving wheel 72, grooves can be arranged on the driving wheel 72 to limit the position of the driving chain 9, so that the stability of the device is improved.
In summary, the invention discloses an intelligent plastic mold based on a sensor, a push-pull device is respectively matched with different liftable bases on a conveyor belt, a male die and a female die are controlled to be combined to form a molding cavity, the position of the molding cavity is regulated by the push-pull device, meanwhile, a push rod is driven to move by a transmission assembly and the conveyor belt, gas in the molding cavity is pumped out to a gas collecting cavity through an air hole and a through hole, a first reset spring is compressed, a pressing block is driven to compress molten plastic in a material placing cavity to obtain raw materials with higher density, the temperature of the raw materials is maintained by a heating device, the push-pull device is lifted after injection molding is finished, the male die and the female die are separated, meanwhile, a first reset spring is reset and drives the push rod to blow out the gas from the air hole again, the molding cavity is in a negative pressure state close to no gas before injection molding, the problem that the gas reacts with the molten plastic is avoided, the air pumping process is monitored in real time by means of a pneumatic sensor to complete the working condition, the efficiency of the injection molding process is prevented, the product can be blown by a gas molded by a motor, the finished product after injection molding can be adhered to an injection molding product, the quality of the injection molding product can be guaranteed, the intelligent plastic mold can be further flexibly driven, the intelligent plastic mold has high-quality-lifting device can be used, and the injection molding quality is improved, and the quality of a good-quality of an injection molding device can be adjusted, and the intelligent plastic mold can be used, and the injection molding can be manufactured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant technical field, are included in the scope of the present invention.
Claims (5)
1. The intelligent plastic mold based on the sensor is characterized by comprising a bracket, a male mold mounting seat, a female mold, a push-pull device, a liftable base, a transmission assembly, an air pressure sensor, a transmission chain, a push rod and a first reset spring;
the push-pull device and the transmission assembly are both arranged on the bracket, the movable end of the push-pull device is fixedly connected with the male die mounting seat and the transmission chain respectively, the male die is arranged on one surface of the male die mounting seat far away from the push-pull device, the liftable base is arranged below the male die, the female die is arranged on the liftable base, and the male die is combined with the female die to form a molding die cavity;
a gas collecting cavity is arranged on one surface of the male die mounting seat, which is close to the push-pull device, a through hole for communicating the gas collecting cavity with the male die is arranged on the male die mounting seat, and a plurality of air holes for communicating the molding die cavity are arranged on the male die at the positions corresponding to the through holes;
one end of the push rod is tightly attached to the inner side wall of the gas collection cavity, the other end of the push rod penetrates out of the gas collection cavity and is fixedly connected with one end of the first reset spring and one end of the transmission chain, the air pressure sensor is arranged on the end face of the push rod, which is positioned in the gas collection cavity, the other end of the first reset spring is arranged on the support, the other end of the transmission chain is fixedly connected with the movable end of the push-pull device through the transmission assembly, and the moving direction of the push rod and the moving end of the push-pull device is opposite;
the device also comprises an injection molding machine, a second reset spring, a pressing block and a material placing cavity;
the pressing block is arranged in the material placing cavity, one end of the pressing block, which is far away from the inner bottom surface of the material placing cavity, penetrates out of the material placing cavity and is fixedly connected with one end of the second reset spring, and the other end of the second reset spring is fixedly connected with the movable end of the push-pull device;
a feeding channel is arranged above the inner side wall of the material placing cavity and is communicated with a discharge hole of a charging barrel of the injection molding machine, a discharge channel is arranged on the inner bottom surface of the material placing cavity and is communicated with the injection molding cavity of the injection molding machine, and an electric valve is arranged on the discharge channel;
the transmission assembly comprises a support shaft and a transmission wheel;
one end of the transmission chain, which is far away from the push-pull device, bypasses the transmission wheel and is fixedly connected with the push rod, the transmission wheel is arranged on the support shaft, and the support shaft is arranged on the support;
the device also comprises a sliding rail, a driving motor and a first displacement sensor;
the two ends of the support corresponding to the support shaft are respectively provided with a slide rail, the two ends of the support shaft are respectively and correspondingly connected with the slide rails in a sliding manner, and the slide rails are parallel to the movable ends of the push-pull device;
the driving motor is arranged on the bracket, the movable end of the driving motor is fixedly connected with the supporting shaft, and the first displacement sensor is arranged on the supporting shaft;
the through hole comprises a common channel and a plurality of branch channels;
one end of the public channel is communicated with the gas collecting cavity, the other end of the public channel is simultaneously communicated with one ends of a plurality of branch channels, and the other ends of the plurality of branch channels are arranged on one surface of the male die mounting seat facing the male die in a dispersing way;
the push-pull device comprises a lifting device and a push rod motor;
the lifting device is arranged on the support, and the push rod motor is arranged on the lifting device.
2. The sensor-based intelligent plastic mold of claim 1, further comprising a temperature sensor and a heating device;
and a heating device and a temperature sensor are arranged on the outer side wall of the material placing cavity.
3. The sensor-based intelligent plastic mold of claim 1, further comprising a photoelectric sensor and a conveyor belt;
the photoelectric sensor is arranged below the male die mounting seat, the conveyor belt is arranged between the transmitter and the receiver of the photoelectric sensor, the number of the liftable bases is multiple, the liftable bases are distributed on the conveyor belt, the male die and the female die which can form the molding die cavities in different shapes are respectively arranged on each liftable base, and one surface of the male die mounting seat, which is far away from the push-pull device, is detachably connected with the male die.
4. A sensor-based intelligent plastic mold according to claim 3, wherein an electromagnet is arranged on a surface of the male mold mounting seat, which is far away from the push-pull device, and a magnetic substance is arranged on a surface of the male mold, which is far away from the female mold;
the male die mounting seat is fixed with the male die through the electromagnet in a magnetic attraction manner.
5. The sensor-based intelligent plastic mold of claim 1, further comprising a second displacement sensor;
the second displacement sensor is arranged on the movable end of the push-pull device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111027139.1A CN113715253B (en) | 2021-09-02 | 2021-09-02 | Intelligent plastic mould based on sensor |
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| CN202111027139.1A CN113715253B (en) | 2021-09-02 | 2021-09-02 | Intelligent plastic mould based on sensor |
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| CN113715253B true CN113715253B (en) | 2023-07-04 |
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| CN108189324B (en) * | 2017-12-29 | 2020-05-12 | 重庆市银盛模具有限公司 | Automobile injection mold |
| CN107901347B (en) * | 2017-12-29 | 2019-09-03 | 重庆市银盛模具有限公司 | The injection mold that can be cleared up |
| CN108527761A (en) * | 2018-05-04 | 2018-09-14 | 重庆台圆橡塑科技有限公司 | Rubber ring injection molding system |
| CN109466050A (en) * | 2018-12-19 | 2019-03-15 | 贵州大学 | A capsule medicine blister forming device |
| CN212072758U (en) * | 2020-03-09 | 2020-12-04 | 苏州八宝精密模具有限公司 | High-precision floor sweeping robot noise reduction roller die |
| CN213137670U (en) * | 2020-08-06 | 2021-05-07 | 佛山市南海豪迪卫浴有限公司 | Shower screen pulley mould |
| CN112454826A (en) * | 2020-09-16 | 2021-03-09 | 骏遇文案策划(温州)有限公司 | Prevent too big energy-concerving and environment-protective articles for daily use mould of pressure |
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